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Effect of short carbon fiber on thermal, mechanical and tribological behavior of phenolic-based brake friction materials

Ahmadijokani, F ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1016/j.compositesb.2018.12.038
  3. Publisher: Elsevier Ltd , 2019
  4. Abstract:
  5. The phenolic-based brake friction composites containing 0, 1, 2 and 4 vol% carbon fiber were fabricated in this study. Thermogravimetric analysis (TGA) revealed the adverse impact of carbon fiber on the thermal stability of the composites under air atmosphere. Differential scanning calorimetry (DSC) of the uncured samples indicated the positive impact of carbon fiber on the crosslink density of the phenolic resin. Viscoelastic results drawn from the dynamic-mechanical analysis (DMA) suggested that inclusion of carbon fiber increased the storage modulus and decreased the damping factor of the frictional composites. The tribological behavior of the specimens was assessed with a chase type friction tester. Both the friction coefficient and specific wear rate decreased with enhancing carbon fiber content. Furthermore, carbon fiber deteriorated the fade behavior of the developed composites. The TGA, DSC and DMA results were used to justify and interpret the observed tribological behavior. © 2018 Elsevier Ltd
  6. Keywords:
  7. Carbon fiber ; Friction ; Phenolic resin ; Tribology ; Wear ; Brakes ; Carbon fibers ; Differential scanning calorimetry ; Friction ; Friction materials ; Phenolic resins ; Resins ; Thermodynamic stability ; Thermogravimetric analysis ; Wear of materials ; Brake friction composites ; Brake friction materials ; Cross-link densities ; Dynamic mechanical analysis (DMA) ; Friction coefficients ; Short carbon fibers ; Specific wear rates ; Tribological behaviors ; Carbon phenolic composites
  8. Source: Composites Part B: Engineering ; Volume 168 , 2019 , Pages 98-105 ; 13598368 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S1359836818319048